Type:Abrasive Pad Feature: 1. This whetstone uses diamond as the abrasive, which is more effective than ordinary whetstone. 2. Mini size design, easy to camp, or used as a kitchen, garden sharpening tool. 3. It is only 1 mm thick, so it does not take up too much space and can be fixed on any plane. 4. It is more efficient than ordinary whetstone and has less risk of damaging the edges. Product Specifications: 1. Abrasive: Diamond 2. Weight: 75g 3. Surface: Honeycomb 4. Number of mesh: 400# 5. Size: 150x63x1mm The Package Includes: 1 oil stone board